definition polyhydramnios
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Polyhydramnios Polyhydramnios Definition. Polyhydramnios is an abnormal condition occurring in pregnancy, characterized by excessive amniotic fluid build-up (the fluid surrounding the baby in the uterus) [1]. It is the opposite of oligohydramnios (extremely low amniotic fluid levels).
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Premature rupture of membranes Premature rupture of membranes. Premature rupture of membranes (PROM), or pre-labor rupture of membranes, is a condition that can occur in pregnancy. It is defined as rupture of membranes (breakage of the amniotic sac), commonly called breaking of the mother's water(s), more than 1 hour before the onset of labor.
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Potter sequence The term Potter sequence was initially intended to only refer to cases caused by BRA; however, it is now commonly used by many clinicians and researchers to refer to any case that presents with oligohydramnios or anhydramnios regardless of the source of the loss of amniotic fluid.
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Overview Polyhydramnios during pregnancy. Polyhydramnios (pol-e-hy-DRAM-nee-os) is the excessive accumulation of amniotic fluid — the fluid that surrounds the baby in the uterus during pregnancy.olyhydramnios occurs in about 1 percent of pregnancies. Most cases of polyhydramnios are mild and result from a gradual buildup of amniotic fluid during the second half of pregnancy. Severe polyhydramnios may cause shortness of breath, preterm labor, or other signs and symptoms.
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Polyhydramnios Polyhydramnios occurs as a result of either increased production or decreased removal of amniotic fluid. The aetiology of polyhydramnios can be due to a vast variety of maternal and fetal disorders. It is usually detected after 20 weeks (often 3rd trimester).
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Pachygyria Pachygyria (from the Greek pachy meaning thick or fat gyri) is a congenital malformation of the cerebral hemisphere.It results in unusually thick convolutions of the cerebral cortex.ne of the best known and most common types of neuronal migration disorders is lissencephaly, a diffuse cortical malformation relating directly to agyria and pachygyria. Incomplete neuronal migration during the early fetal brain development is the precursor to lissencephaly.
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perilymph  [perâ²i-limf] Type:Term. Definitions. 1. The fluid contained within the osseus labyrinth, surrounding and protecting the membranous labyrinth; perilymph resembles extracellular fluid in composition (sodium salts are the predominant positive electrolyte) and, through the perilymphatic duct, is in continuity with cerebrospinal fluid.
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Overview Premature rupture of membranes (PROM) refers to a patient who is beyond 37 weeks' gestation and has presented with rupture of membranes (ROM) prior to the onset of labor.
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Human Physiology/Pregnancy and birth Polyhydramnios is a condition in which there is too much fluid in the amniotic sac, the sac that holds the developing baby (fetus). This liquid is called amniotic fluid, and it surrounds the fetus throughout pregnancy. Polyhydramnios can be caused by:1  Problems with the baby's nervous system or gastrointestinal tract.2  Genetic disorders or birth defects. 3  Multiple pregnancy (twins or more). 4  It occurs in up to 5 out of 100 twin pregnancies.5  Diabetes.his liquid is called amniotic fluid, and it surrounds the fetus throughout pregnancy. Polyhydramnios can be caused by: 1  Problems with the baby's nervous system or gastrointestinal tract. 2  Genetic disorders or birth defects. 3  Multiple pregnancy (twins or more). 4  It occurs in up to 5 out of 100 twin pregnancies. 5  Diabetes.
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- What is excessive amniotic fluid, also known as polyhydramnios, and what does it mean for you and your baby? 7 pregnancy complications to watch out for A quick guide for pregnant mothers to the seven most common pregnancy complications, including miscarriage, gestational diabete...
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- Define amniotic. amniotic synonyms, amniotic pronunciation, amniotic translation, English dictionary definition of amniotic. n. pl. am·ni·ons or am·ni·a A tough, thin membrane that forms a sac enclosing the embryo or fetus of a mammal, bird, or reptile. It is filled with a serous...
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Amniotic fluid An abnormally small amount of amniotic fluid is referred to as oligohydramnios; there may be less than 100 ml of fluid present. The cause is unknown. The condition may produce pressure deformities of the fetus, such as clubfoot or torticollis. Adhesions may result from direct contact of the fetus with the amnion.
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Polyhydramnios Polyhydramnios means having too much amniotic fluid in the uterus (womb). It occurs in less than one per cent of pregnancies in Australia. The waters or amniotic fluid surrounding your baby protect him from being hurt if you have a blow to your tummy or your tummy is compressed.ometimes the extra fluid is due to a problem with the baby, or with the placenta or with you, the mother. Possible causes include: However, it is important to remember that most women with polyhydramnios go on to have healthy babies, particularly if the condition is mild.
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premature rupture of membranes Definition. Premature rupture of membranes (PROM) is an event that occurs during pregnancy when the sac containing the developing baby (fetus) and the amniotic fluid bursts or develops a hole prior to the start of labor.
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- Polyploidy. Polyploidy is a condition in which an individual has sets of chromosomes greater than the normal diploid number. There are number of key factors to help you remember: 1  The number of chromosomes making up one set is the haploid number = n. 2  The number of chromosomes making up two sets is the diploid number = 2n.
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amnion amnion. the innermost fetal membrane, which forms a sac filled with amniotic fluid that surrounds the embryo and later the fetus; as it enlarges it gradually obliterates the chorionic cavity and enfolds the umbilical cord. Called also bag of waters.
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Amniotic Fluid Excessive amniotic fluid level in the uterus is known as polyhydramnios which can lead to symptoms like difficulty breathing, excessive weight gain and edema. Various factors may be responsible for elevated fluid levels, such as maternal diabetes and infectious conditions as well as fetal abnormalities.
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Low Amniotic Fluid Levels: Oligohydramnios About 8% of pregnant women can have low levels of amniotic fluid, with about 4% being diagnosed with oligohydramnios. It can occur at any time during pregnancy, but it is most common during the last trimester.
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Low Amniotic Fluid Levels: Oligohydramnios Low Amniotic Fluid Levels: Oligohydramnios: Causes, Risks and Treatment. The amniotic fluid is part of the baby’s life support system. It protects your baby and aids in the development of muscles, limbs, lungs and digestive system. Amniotic fluid is produced soon after the amniotic sac forms at about 12 days after conception.
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- It is defined as rupture of membranes (breakage of the amniotic sac), commonly called breaking of the mother's water(s),[1] more than 1 hour before the onset of labor.[2] The sac (consisting of 2 membranes, the chorion and amnion) contains amniotic fluid, which surrounds and protects the fetus in the uterus (womb).
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Multiple birth Terms used for multiple births or the genetic relationships of their offspring: 1  Monozygotic – multiple (typically two) fetuses produced by the splitting of a single zygote. 2  Dizygotic – multiple (typically two) fetuses produced by two zygotes. 3  Polyzygotic – multiple fetuses produced by two or more zygotes.
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Overview Some of the known causes of polyhydramnios include: 1  A birth defect that affects the baby's gastrointestinal tract or central nervous system. 2  Maternal diabetes. 3  Twin-twin transfusion — a possible complication of identical twin pregnancies in which one twin receives too much blood and the other too little.
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Pregnancy week by week Few effective treatments exist for low amniotic fluid (oligohydramnios). During pregnancy, amniotic fluid provides a cushion that protects the baby from injury and allows room for growth, movement and development. Amniotic fluid also keeps the umbilical cord from being compressed between the baby and the uterine wall.In addition, the amount of amniotic fluid reflects the baby's urine output — which is an important measure of a baby's well-being.Various factors can contribute to low amniotic fluid in pregnancy, including: 1  Your water breaking (ruptured fetal membranes).ew effective treatments exist for low amniotic fluid (oligohydramnios). During pregnancy, amniotic fluid provides a cushion that protects the baby from injury and allows room for growth, movement and development. Amniotic fluid also keeps the umbilical cord from being compressed between the baby and the uterine wall.
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Hydrops fetalis Hydrops fetalis is a condition in the fetus characterized by an accumulation of fluid, or edema, in at least two fetal compartments. By comparison, hydrops allantois or hydrops amnion are an accumulation of excessive fluid in the allantoic or amniotic space respectively.
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What Is Anhydramnios? Anhydramnios is a condition, occurring in pregnancy, in which there is no amniotic fluid around the fetus. The condition can cause a number of problems, including respiratory failure once the infant is born. With modern medical intervention, anhydramnios is not always deadly, though it does require a quick response by the infant’s medical team.
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Oligohydramnios What Is Oligohydramnios? It is a condition where too little amniotic fluid surrounds the fetus in the womb . Amniotic fluid cushions the baby and is a vital part of its life support system in aiding the development of its muscles, lungs and digestive system.